Drying of a Multicomponent Polymeric Coating Film: Modelling and Experiments

Conference paper

Fabio Luna, Apolinar Picado, Joaquín Martínez
28th Inter-American Congress of Chemical Engineering (IACChE 2016), Victor Ramirez, Inter-American Confederation of Chemical Engineering (CIIQ), Cusco, Peru, 2016 Oct 10, Paper No. 353

DOI: 10.5281/zenodo.4515097

Cite

APA Click to copy
Luna, F., Picado, A., & Martínez, J. (2016). Drying of a Multicomponent Polymeric Coating Film: Modelling and Experiments. In V. Ramirez (Ed.) (pp. Paper No. 353). Cusco, Peru: Inter-American Confederation of Chemical Engineering (CIIQ). https://doi.org/10.5281/zenodo.4515097

Chicago/Turabian Click to copy
Luna, Fabio, Apolinar Picado, and Joaquín Martínez. “Drying of a Multicomponent Polymeric Coating Film: Modelling and Experiments.” In , edited by Victor Ramirez, Paper No. 353. 28th Inter-American Congress of Chemical Engineering (IACChE 2016). Cusco, Peru: Inter-American Confederation of Chemical Engineering (CIIQ), 2016.

MLA Click to copy
Luna, Fabio, et al. Drying of a Multicomponent Polymeric Coating Film: Modelling and Experiments. Edited by Victor Ramirez, Inter-American Confederation of Chemical Engineering (CIIQ), 2016, pp. Paper No. 353, doi:10.5281/zenodo.4515097.

BibTeX Click to copy

@inproceedings{fabio2016a,
  title = {Drying of a Multicomponent Polymeric Coating Film: Modelling and Experiments},
  year = {2016},
  month = oct,
  day = {10},
  address = {Cusco, Peru},
  pages = {Paper No. 353},
  publisher = {Inter-American Confederation of Chemical Engineering (CIIQ)},
  series = {28th Inter-American Congress of Chemical Engineering (IACChE 2016)},
  doi = {10.5281/zenodo.4515097},
  author = {Luna, Fabio and Picado, Apolinar and Martínez, Joaquín},
  editor = {Ramirez, Victor},
  month_numeric = {10}
}

The convective drying of a multicomponent polymeric solution containing two volatile components (acetone and ethanol), one non-volatile (cellulose acetate hydrogen phthalate), and an optional non-volatile component (ethylene glycol) as a softener was studied. Experiments were carried-out on a flat thin film geometry in batch mode. A mathematical model was presented to describe the composition profiles in the film as a function of time. Experiments showed that the drying rate exhibits two distinct falling periods. The addition of a softener changed the drying behaviour. Experiments where the softener was present show a higher and faster decrease in evaporation rates during the initial stage of the drying process. Physically, the film developed a membrane on the surface at the beginning of the evaporation, becoming thicker as the solvents were depleted. Lateral or edge drying was observed along the exposed evaporation surface. Simulation results have a good qualitative agreement with experiments.